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diff --git a/gcc/config/aarch64/tuning_models/ampere1b.h b/gcc/config/aarch64/tuning_models/ampere1b.h
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+++ b/gcc/config/aarch64/tuning_models/ampere1b.h
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+/* Tuning model description for the Ampere1B core.
+   Copyright (C) 2023 Free Software Foundation, Inc.
+
+   This file is part of GCC.
+
+   GCC is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   GCC is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with GCC; see the file COPYING3.  If not see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef GCC_AARCH64_H_AMPERE1B
+#define GCC_AARCH64_H_AMPERE1B
+
+#include "generic.h"
+
+static const cpu_prefetch_tune ampere1b_prefetch_tune =
+{
+  48,			/* num_slots  */
+  64,			/* l1_cache_size  */
+  64,			/* l1_cache_line_size  */
+  2048,			/* l2_cache_size  */
+  true,			/* prefetch_dynamic_strides */
+  -1,			/* minimum_stride */
+  -1			/* default_opt_level  */
+};
+
+static const advsimd_vec_cost ampere1b_advsimd_vector_cost =
+{
+  1, /* int_stmt_cost  */
+  3, /* fp_stmt_cost  */
+  0, /* ld2_st2_permute_cost  */
+  0, /* ld3_st3_permute_cost  */
+  0, /* ld4_st4_permute_cost  */
+  2, /* permute_cost  */
+  8, /* reduc_i8_cost  */
+  6, /* reduc_i16_cost  */
+  4, /* reduc_i32_cost  */
+  2, /* reduc_i64_cost  */
+  9, /* reduc_f16_cost  */
+  6, /* reduc_f32_cost  */
+  3, /* reduc_f64_cost  */
+  5, /* store_elt_extra_cost  */
+  5, /* vec_to_scalar_cost  */
+  5, /* scalar_to_vec_cost  */
+  4, /* align_load_cost  */
+  4, /* unalign_load_cost  */
+  1, /* unalign_store_cost  */
+  1  /* store_cost  */
+};
+
+/* Ampere-1B costs for vector insn classes.  */
+static const struct cpu_vector_cost ampere1b_vector_cost =
+{
+  1, /* scalar_int_stmt_cost  */
+  3, /* scalar_fp_stmt_cost  */
+  4, /* scalar_load_cost  */
+  1, /* scalar_store_cost  */
+  1, /* cond_taken_branch_cost  */
+  1, /* cond_not_taken_branch_cost  */
+  &ampere1b_advsimd_vector_cost, /* advsimd  */
+  nullptr, /* sve  */
+  nullptr  /* issue_info  */
+};
+
+static const struct tune_params ampere1b_tunings =
+{
+  &ampere1b_extra_costs,
+  &generic_addrcost_table,
+  &generic_regmove_cost,
+  &ampere1b_vector_cost,
+  &generic_branch_cost,
+  &generic_approx_modes,
+  SVE_NOT_IMPLEMENTED, /* sve_width  */
+  { 3, /* load_int.  */
+    1, /* store_int.  */
+    4, /* load_fp.  */
+    4, /* store_fp.  */
+    4, /* load_pred.  */
+    4 /* store_pred.  */
+  }, /* memmov_cost.  */
+  4, /* issue_rate  */
+  (AARCH64_FUSE_ADRP_ADD | AARCH64_FUSE_AES_AESMC |
+   AARCH64_FUSE_MOV_MOVK | AARCH64_FUSE_MOVK_MOVK |
+   AARCH64_FUSE_ALU_BRANCH /* adds, ands, bics, ccmp, ccmn */ |
+   AARCH64_FUSE_CMP_BRANCH | AARCH64_FUSE_ALU_CBZ |
+   AARCH64_FUSE_ADDSUB_2REG_CONST1),
+  /* fusible_ops  */
+  "32",		/* function_align.  */
+  "4",		/* jump_align.  */
+  "32:16",	/* loop_align.  */
+  2,	/* int_reassoc_width.  */
+  4,	/* fp_reassoc_width.  */
+  1,	/* fma_reassoc_width.  */
+  2,	/* vec_reassoc_width.  */
+  2,	/* min_div_recip_mul_sf.  */
+  2,	/* min_div_recip_mul_df.  */
+  0,	/* max_case_values.  */
+  tune_params::AUTOPREFETCHER_STRONG,	/* autoprefetcher_model.  */
+  (AARCH64_EXTRA_TUNE_CHEAP_SHIFT_EXTEND),	/* tune_flags.  */
+  &ampere1b_prefetch_tune,
+  AARCH64_LDP_STP_POLICY_ALIGNED,   /* ldp_policy_model.  */
+  AARCH64_LDP_STP_POLICY_ALIGNED    /* stp_policy_model.  */
+};
+
+#endif /* GCC_AARCH64_H_AMPERE1B */